Direct-acting air-pump.



"Nm 674,319. Patented may 2|, |9ol.

E. m. WHEELER. DIRECT ACTING AIR PUMP.

(Application med sopa. 9, 1699.)

2 Sheets-Sheet l.

(No Model.)

ma nofws mais co. morau'rna.. wmuaan, n4 z:4

Patented May 2l, I90I.

2 Sheets-Sheet 2.

@Z4/M@ 9&5/

F. M. WHEELER.

DIRECT ACTING AIR PUMP.

Application med sept 9,v 1899.)

we 'mums Farms ce Pumaumo wAsmuoron n c (No Model.)

llrvTTiep STATES PATnNT @Trina FREDERICK MERIAM NYHEELER, OF MONTOLAIR,NEW JERSEY, ASSIGNOR TO THE GEO. F. BLAKE MANUFACTURING COMPANY, OF NEWYORK, N. Y.

DlRECT-ACTING AIR-PUMP.

SPEGIFIOATION forming part of Letters Patent No. 674,819, dated May 21,1901.

Applicetion'filed September 9, 1899. Serial No. 729,920. (No model.)

T all wwm 7525 WMI/y OOYwWI/r that is capable of being raised to giveaccess Be it known that I, FREDERICK MERIAM to the valves at the top ofthe cylinder. The VHEELER, a citizen of the United States,redischarge-ports meet together at a dischargesiding at Montclair, inthe county of Essex pipe that is central, o1' nearly so, of the cyl- 555 and State of New Jersey, have invented an inder, and there is a damfor retaining the ImprovenientinDirect-ActingAir-Pumps, of liquid abovethe valve-seats at the top of the which the following is aspecification'. cylinder, so that the valves are always keptDirect-acting pumps have heretofore been sealed. placed both horizontaland vertical. Where In the drawings, Figure l is a vertical sec- 6o xothey have been placed horizontal there was tion of the pump and anelevation of the ennneven wear upon the parts composing the gine. Fig. 2is a sectional plan view of the valves and it has been difficult to keepthe pump at the line @t a: of Fig l; and Fig. 3 is valves tight. Wherethey have been placed a detached vertical section at y y of Fig. 2,vertical the valves have been quite inaccesshowing the dam adjacent tothe upper dis- 65 sible and some of the valves have been recharge-valve.The section Fig. 3 is at right versed and it was necessary to almostdismanangles to the section Fig. l. tle the pump to obtain access to thevalves. The engine-cylinderA is mounted upon the The object of myinvention is to place the plate B at the upper end of the columns O,pump vertical and to place all the valves vertiand upon the piston-rod Dis a link-and-coup- 7o zo cal and so as to lift upward from their seatsling connection to the pivoted lever E, that and arranged so that theyare all accessible is employed to actuate the valves of the enby thesimple removal of cover-plates withgine. These parts, however, may be ofany out changing or disturbing any of the other desired character.working parts thereof. The pump-cylinder F is connected at the 75 2 5 Inmy present invention I make use of a lower end to the columns O, andnearly around pump-cylinder with a vertically-acting pisthe middle ofthis cylinder is' an inlet-chamton and rod leading to the steam-cylinderber 3, with a port 4, which is substantially placed overthepump-cylinder, andthe pumpannular and extends partially around andcylinder is made withan inlet-chambernearly opens into the middle of thecylinder from So around the middle portion anda narrow port theinlet-chamber 3, and at one side of this` that extends almost entirelyaround the cylinlet-chamber is a liange 5, to which the pipe inder forfreely admitting the Water and vafrom the condenser is connected, and itis .to pors or air. The piston passes down below be understood thatthere are no inlet-valves, this inlet-port, allowing the fluid to flowinto but that the Huid from thel condenser runs 85 the cylinder and uponthe piston, and the through the pipe 'and inlet-chamber and port fluidis forced out at the upper end of the cyl- 4 into the pump-cylinder F.inder through vertically-acting valves, and The piston G, that isconnected to the lower when the piston is in the upper part of its endof the rod D, is sufficiently wide to corstroke the inlet from thechamber into the respond nearly to half the length of the pump- 9o 4ocylinder allows the 'Huid to flow in below the cylinder. Hence thispiston covers the inpiston into the bottom part of the cylinder let-port4 except when the piston is near one and it is discharged upon thedownstroke of head or the other of the pump-cylinder, at the pistonthrough one or more ports in the which time the `fluid runs through theport 4 bottom of the cylinder and upwardly through into the cylinder,either above the piston or 95 discharge-valves that work vertically andbelow it, and as the piston rises the fluid is are grouped in a chamberextending partially forced upwardly through the valves H, and around thelower part of the cylinder, havwhen the piston is descending the liuidis dising an elongated opening provided with a recharged downwardlythrough the passagemovable cap or cover, so that access is freely waysor ports and upwardly through the disroo 5o given to the lower valves,and there is a cap charge-valves I.

around the piston-rod and above the cylinder The discharge-valves I arein a chamber 7,

having an elongated opening and a movable cover K, and this chamber 7passes partially around the base of the cylinder F and connects with avertical passage 8, from which there is an opening at 9, and the flangeof the discharge-pipe is to be connected at this opening. It isadvantageous to cast the cylinder F with the ports 6 and l and theinletchamber 3 and the discharge-chamber with the vertical passage 8 atone side of the pumpcylinder all in one, as the valves are provided foras hereinafter described.

The removable cover K gives access to all the discharge-valves I, sothat they can be fitted into the openings provided for them in thecasting. These valves I are to be of any desired character; but inconsequence of the seats that are provided for the dischargevalves beinghorizontal the valve-stems can be vertical, and thereby the valves riseand fall Without perceptible friction and the unnecessary Wear resultingfrom the weight of the valve or such wear as Would result from thevalve-stems being horizontal or at an inclination. I nd it advantageousto make use of valves, such as represented, with a spiral spring aroundthe valve-stem and pressing upon the valve-disk and a conical guardscrewed upon each valve-stem for limiting the lifting action of eachvalve.

It is advantageous to cast the bottom of the cylinder F in one with thecylinder; but the cylinder-head L of the cylinder, which also forms thechamber for the upper discharge-valves, is removable from the cylindersimilar to an ordinary cylinder-head, and 1 this head is made as avalve-chest or to contain suitable valve-seats with a cover L', and thepiston-rod passes centrally through this cylinder-head and the cover,and there is a packing-gland l0 for the piston-rod, as represented. The'cylinder-head L extends out over the upper end of the vertical passage8,

and there is an opening therein into the same,

with a dam at ll for retaining water sufficient to cover thedischarge-valves H, which valves H are advantageously made similar tothe valves I.

It will now be understood that by unbolting the cover L' the same can beslipped up upon the piston-rod D to give access to the discharge-valvesH for cleaning or repairing, and that this pump can be made very lightand strong, because there are but few separate parts, and the devicesthat are cast with the pump-cylinder serve to strengthen the same andall the valves are easily accessible, and that in consequence of thecentral port to the cylinder the pump becomesaso-called valves I abovethe Huid which remains in the port 8, and in practice I lind that thispump is adapted to take away the water of condensation from a condenserand to maintain a vacuum by the expenditure of much less power thanheretofore usual, and the pump itself occupies very little door -space,the weight is reduced to a minimum, and the parts all actingsubstantially vertically there is very little wear on either the piston,the piston-rod, the valves, or the valve-stems-7 thus making the pumpvery desirable for marine installation and especially adapted for useupon torpedo-boats and similar vessels.

I claim as my inventionl. The combination in a steam-pump with thepiston and piston-rod, of an integral cast cylinder having a centralsubstantially annular inlet-chamber around the cylinder and a centralport connecting the same with the cylinder and forming a valvelesssuction, a valvechamber at one side of the cylinder and near the lowerend and formed by walls and a bottom cast integral with and extendingout from the cylinder, valve-seats and valves in said chamber and aremovable cover above the valves and providing access thereto,substantially as specified.

2. The combination in a steam-pump with the piston and piston-rod, of anintegral cast cylinder havinga central substantially annularinlet-chamber around the cylinder, and a central port connecting thesame with the cylinderandforminga valveless suction, a valvechamber atone side of the cylinder and near the lower end and formed by Walls anda bottom cast integral with and extending out from the cylinder,valve-seats and valves in said chamber and a removable cover above thevalves and providing access thereto, and a removable cylinderhead,valves placed horizontally therein, a cover to said head and apassage-way leading from the cylinder-head to the discharge-pipe,substantially as set forth.

3. The combination in a steam-pump with the piston and piston-rod, of anintegral cast cylinderhaving a central substantiallyl annularinlet-chamber around the cylinder and a central port connecting the samewith the cylinder and forming a valveless suction, a valvechamber at oneside of the cylinder and near the lower end and formed by walls and abottom cast integral with and extending out from the cylinder,valve-seats and valves in said chamber and a removable cover above thevalves and providing access thereto, a removable cylinder-head extendedat one side with a discharge-way and a dam adjacent thereto, valvesplaced horizontally in the lower part thereof, a cover to said head anda passage-way leading from the dischargeway of the cylinder-head to thedischarge-pipe, substantially as set forth.

4. The combination in asteam-pump, with the piston and piston-rod, of anintegral cast cylinder having a central inlet and port, a

IOO

removable cylinder-head and valves therein, and a removable cover and avalve-chamber at one side of and outside at the lower part of thecylinder, valves therein and a removable cover thereto7 substantially asspecified.

5. The combination in a steam-pump with the piston and piston-rod, of anintegral cast cylinder with the bottom of the cylinder depressed belowand extending beyond one edge of the cylinder at one side with port 6 atthe depression and with integral Walls adjacent to the said bottom andside, and aremovable cover therefor and forming an outside valvechamberat the lower portion of the cylinder and valves therein, substantiallyas specilied.

6. The combination in a pump With a power mechanism, the piston andpiston-rod, of an integral cast cylinder having a central substantiallyannular inlet around the cylinder, valves in the cylinder-head and aremovable cover to give access thereto, a valvechamber at one side ofand outside the cylinder and near the lower end having Walls integralwith the cylinder, valve-seats and valves in said chamber and aremovable cover above the valves providingaccess thereto,sub stantiallyas specified.

7. The combination'in a pump With a power mechanism, the piston andpiston-rod, of an integral cast cylinder having a central substantiallyannular inlet around the cylinder, valves in the cylinder-head and aremovable cover to give access thereto, a valve-chamber at one side ofand outside the cylinder and near the lower end having walls integralwith the cylinder, valve-seats and valves in said chamber, and aremovable cover above the valves providing access thereto, a chamberbelow the valves and a port connecting the same with thecylinder,substantially as specified.

S. The combination in a vertical pump with the piston-rod, piston andcylinder, of a removable head with openings and surrounding valve-seatsand valves, a passage-Way formed by an integral extension oftheremovable head and leading from the valve chamber of the removablehead to the disu charge-pipe and a dam at the said passage Way formedintegral with the said removable head and acting to retain liquid aboveand covering the valve and valve-seats, substantially as specified.

9. The combination in a vertical pump with the piston-rod, piston andcylinder, of a removable head With openings and surrounding valve-seatsand valves, a passage-Way formed by an integral extension of theremovable head and leading from the valvechamber of the removable headto the discharge-pipe, and a dam at the said passage- Way formedintegral with the said removable head and acting to retain liquid aboveand covering the valve and valve-seats, and a removable cover to thevalve-cham ber of the removable head and a packing-gland for `thepiston-rod upon such removable cover, sub stantially as set forth.

Signed by me this 6th day of September, 1899.

FK. MERIAM WHEELER.

Witnesses: GEO. T. PINGKNEY, S. T. HAVILAND.

